Group one -- ANSEL ADAMS "Moon and Half Dome" 1960

Group two -- ANSEL ADAMS "Clearing Winter Storm" 1944

Group three -- IMOGEN CUNNINGHAM "Two Callas" 1929

Group four -- IMOGEN CUNNINGHAM "The Unmade Bed" 1957

Group five -- EDWARD WESTON "Big Sur" 1945

Group six -- EDWARD WESTON "Nude, 1936"